JP7376202B1 - Retention attachment - Google Patents

Abstract

A holding attachment used for a surgical support device having a plurality of connecting arms and a holder supported by the connecting arms and for holding a surgical tool in the holder, the separator being removably attached to the holder; an adapter to which a surgical tool is attached detachably to the separator; the adapter is configured by combining a first member and a second member; the first member and the second member are respectively attached to the separator; locked.

Description

The present invention relates to the technical field of a holding attachment used for a surgical support device.

In recent years, surgical operations using surgical support devices have become popular. Such a surgical support device includes a plurality of connecting arms that are rotatably or rotatably connected in order. There are some that are connected. As surgical tools, endoscopes, forceps, etc. are used depending on the type and situation of the surgery.

In a surgical support device, when a plurality of connecting arms are pivoted or rotated in a predetermined direction, the position and posture of the surgical tool are changed in accordance with the movement of the connecting arms, and the surgical tool held in the holder performs a surgical operation. will be held.

A surgical operation using the above-mentioned surgical support device is generally performed by an operator (doctor) remotely operating the surgical support device installed in an operating room using a master-slave system. When performing such a surgical operation, a pivot point is set as a reference point for the position and posture of the surgical instrument.

The pivot point is a location that generally corresponds to a port formed in the patient's body cavity into which a surgical instrument is inserted, and if a trocar is used, the pivot point generally corresponds to the position of the trocar. Therefore, when a surgical instrument is inserted into a patient's body cavity, the position and posture of the surgical instrument are controlled so that a part of the surgical instrument always passes through the pivot point; This prevents the occurrence of a load on tissues near the patient's body surface, thereby ensuring safety.

Furthermore, in surgical operations, there are cases in which the surgeon or an assistant holds a surgical tool and manually operates the surgical tool. For example, when inserting a surgical instrument into a patient's body cavity, or when photographing or observing the state of the body cavity in the inserted state, the surgical instrument may be manually operated.

Some surgical support devices as described above hold a surgical tool by attaching it to a holder via a separator or an adapter (for example, see Patent Document 1). In some cases, multiple types of adapters with different shapes and sizes are available, and in this case, the most suitable type is selected and used depending on the size and shape of the surgical tool.

The surgical support device is covered with a drape that separates a clean area from a dirty area during surgery, and the space inside the drape is maintained as a clean area. With the surgical support device covered by the drape, the separator is attached to the holder from the outside of the drape, the adapter with the surgical instrument attached is attached to the separator, and the surgical instrument is held in the holder via the separator and the adapter. .

Patent No. 6795162

Incidentally, during surgery, body fluids or blood may adhere to the surgical tool, and in this case, it may be necessary to remove the surgical tool from the adapter and clean it or replace the surgical tool during the surgery.

In particular, when the surgical instrument is an endoscope, if body fluid or blood adheres to the surface of the lens of the endoscope, there is a risk that it will not be possible to accurately grasp the condition of the affected area. In some cases, you may be forced to replace the product.

Furthermore, in surgery, it may be necessary to exchange one surgical tool for another depending on the surgical method, patient's disease status, and the like.

In such cases, the adapter to which the surgical tool is attached may be removed from the separator, but from the perspective of preventing damage to the surgical tool and ensuring a quick and smooth procedure, it is necessary to prevent the surgical tool from falling off unintentionally. There is a need.

Therefore, the purpose of the holding attachment of the present invention is to prevent the surgical tool from falling off unintentionally.

The holding fitting according to the present invention is used for a surgical support device having a plurality of connecting arms and a holder supported by the connecting arms, and is used for causing the holder to hold a surgical tool. and a separator that is removably attached to a holder, and an adapter that is removably attached to the separator and to which the surgical tool is attached, and the adapter is configured by combining a first member and a second member. The first member and the second member are respectively locked to the separator, the first member is provided with a pair of coupling protrusions that protrude toward the second member, and the first member is provided with a pair of coupling protrusions that protrude toward the second member, and A pair of coupling recesses to which the pair of coupling protrusions are coupled are formed on the inner surface of the second member, and a pair of protrusions spaced apart in the direction in which the pair of coupling protrusions are lined up are formed on the second member. The first member is provided with a pair of regulating protrusions that are brought into contact with or close to the pair of protrusions from the outside in the direction in which the first member is lined up.

As a result, in a state where one of the first member or the second member is removed from the separator and the connection between the first member and the second member is released, the other of the first member or the second member is removed from the separator. Therefore, the surgical tool can be held by the first member or the second member that is locked to the separator.

According to the present invention, in a state where one of the first member or the second member is removed from the separator and the connection between the first member and the second member is released, the first member or the second member is Since the other member is locked to the separator, it becomes possible to hold the surgical tool by the first member or the second member that is locked to the separator, and the coupling between the first member and the second member is released. It is possible to prevent the surgical tool from falling off when the surgical tool is in a closed state.

This figure shows an embodiment of the holding attachment of the present invention together with FIGS. 2 to 24, and this figure is a schematic perspective view showing the operating state of the surgical support device. It is a schematic perspective view of a surgical support device. FIG. 3 is an exploded perspective view of the holder. FIG. 3 is a sectional view showing a lock mechanism and the like. FIG. 3 is a cross-sectional view showing a state in which the separator is locked by a locking mechanism. FIG. 3 is a perspective view showing a state in which the holder and the main body of the device are covered with a drape together with a separator. FIG. 3 is a perspective view of a separator. It is a front view of a separator. FIG. 3 is a cross-sectional view showing a separator attached to a holder via a hood. FIG. 3 is an exploded perspective view of the adapter. FIG. 3 is a perspective view of the adapter. FIG. 3 is a front view of the first member. It is a bottom view of a 1st member. FIG. 3 is a front view of the second member. FIG. 3 is a plan view of the second member. FIG. 3 is a cross-sectional view of the adapter. It is an exploded perspective view showing a surgical instrument and an adapter. FIG. 3 is a cross-sectional view showing a state in which the attachment portion of the surgical instrument is attached to the adapter. FIG. 3 is a sectional view showing a state in which an adapter is attached to a separator and the separator is attached to a holder. FIG. 3 is a perspective view showing an adapter, a separator, and a holder to show the mounting direction. FIG. 6 is a perspective view showing the adapter and the separator with the second member attached to the separator. FIG. 3 is a sectional view showing a state in which the adapter is locked to the separator. 23 is a cross-sectional view showing a state in which the adapter is locked to the separator, taken in a different direction from FIG. 22. FIG. 24 is a sectional view showing a state where the adapter is unlocked from the separator at the same position as FIG. 23. FIG.

EMBODIMENT OF THE INVENTION Below, the form for implementing the attachment tool for holding|maintenance of this invention is demonstrated with reference to an accompanying drawing.

The embodiment shown below shows an example in which the surgical support device used in the present invention is applied to a type that is used while being fixed to a surgical table. However, the scope of application of the surgical support device used in the present invention is not limited to the type that is used while being fixed to the operating table, but also the type that is used while being installed on the floor of the operating room, or the type that is used on the ceiling of the operating room. It can also be applied to a type that is mounted on a wall.

Note that the front, back, top, bottom, left and right directions shown below are for convenience of explanation, and the implementation of the present invention is not limited to these directions.

<Schematic configuration of surgical support equipment, etc.>
First, the schematic configuration of the surgical support device 1 and the like will be described (see FIGS. 1 and 2).

An operating table 100 is installed in the operating room, and a patient 200 is lying on the operating table 100, for example, in a supine state. A fixing rail 100a is provided on the side of the operating table 100. A port 202 is formed in the body cavity 201 of the patient 200, for example, the abdominal wall 201a. A portion of a surgical tool, which will be described later, is inserted into the port 202 when a surgical operation is performed. Port 202 is a small hole into which a portion of a surgical tool is inserted.

The surgical support device 1 has a device main body 2 and a holder 3. Inside the device main body 2, for example, one electric motor (not shown) and a plurality of pneumatic actuators (not shown) are arranged.

The apparatus main body 2 has a fixed base 4 that can be fixed to the operating table 100 and an arm body 5 connected to the fixed base 4.

The fixed base 4 has a substantially rectangular parallelepiped base body 6 in which predetermined various mechanisms are provided, a pedestal 7 rotatably supported by the base body 6, and a clamper 8 protruding from the base body 6. There is. The clamper 8 has an upper clamp part 8a and a lower clamp part 8b, and at least one of the upper clamp part 8a and the lower clamp part 8b is movable in a direction toward and away from the other.

An air suction pipe (not shown) projects from the surface of the base body 6 opposite to the surface on which the clamper 8 is provided. The air suction pipe is connected to the compressor via a suction tube. Therefore, compressed air is supplied to the inside of the fixed base 4 from the compressor. The compressed air supplied to the inside of the fixed base 4 passes through the inside of the fixed base 4 to the inside of the arm body 5 and is used as a driving force for operating each part of the arm body 5.

The surgical support device 1 is fixed to the operating table 100 by the upper clamp part 8a and the lower clamp part 8b of the clamper 8 holding the fixing rail 100a from above and below.

The surgical support device 1 is, for example, transported by a trolley (stand), with the fixed base 4 attached to a trolley (stand) not shown, and then transported to a sterilization room where it is sterilized and then transported to the operating room. Used in surgery.

The pedestal 7 is rotatably supported by the base body 6 so as to be rotatable about an axis S1 extending perpendicularly to the base body 6, and a portion thereof is located above the upper surface of the fixed base 4. The pedestal 7 is rotated relative to the fixed base 4 by, for example, the driving force of an electric motor.

The arm body 5 has a first connecting arm 9, a second connecting arm 10, and a third connecting arm 11. Note that the number of connecting arms in the arm body 5 is not limited to three, and may be a plurality of connecting arms, and may be two or four or more.

The first connecting arm 9 has one end in the longitudinal direction provided as a first connecting part 9a, and the other end in the longitudinal direction serving as a second connecting part 9b. The first connecting arm 9 has a first connecting portion 9a connected to the pedestal 7, and is rotatable relative to the pedestal 7 about a horizontally extending axis S2 as a fulcrum. The first connecting arm 9 is rotated relative to the base 7 by, for example, a pneumatic actuator operated by compressed air supplied from a compressor.

The second connection arm 10 has one end in the longitudinal direction provided as a first connection part 10a, and the other end in the longitudinal direction provided as a second connection part 10b. The second connecting arm 10 has a first connecting part 10a connected to a second connecting part 9b of the first connecting arm 9, and rotates with respect to the first connecting arm 9 about an axis S3 extending in the horizontal direction. be made movable. The second connecting arm 10 is rotated relative to the first connecting arm 9 by a pneumatic actuator operated by compressed air supplied from a compressor, for example.

The third connecting arm 11 has one end in the longitudinal direction provided as a first connecting part 11a, and the other end in the longitudinal direction serving as a second connecting part 11b. The second connecting portion 11b is composed of, for example, two arm portions. In the third connecting arm 11, the first connecting part 11a is connected to the second connecting part 10b of the second connecting arm 10, and the second connecting arm 10 is connected to the axis S4 extending in a direction orthogonal to the axis S3 as a fulcrum. Rotatable with respect to. The third connecting arm 11 is not rotated by an external driving force such as the driving force of an electric motor or a pneumatic actuator, and is not rotated by its own weight or other forces such as the first connecting arm 9 or the second connecting arm 10. This is a part that rotates freely according to the movement.

<Specific configuration of holder>
Next, the specific structure of the holder 3 will be explained (see FIGS. 2 to 5).

The holder 3 is rotatably supported (connected) to the second connecting portion 11b of the third connecting arm 11 (see FIG. 2). The holder 3 has a substantially cylindrical outer shape, and is connected to the second connecting portion 11b at an intermediate portion in the longitudinal direction (axial direction). The holder 3 is rotatable relative to the third connecting arm 11 about an axis S5 extending in a direction perpendicular to the axis S4. The holder 3 is not rotated by an external driving force such as the driving force of an electric motor or a pneumatic actuator, but is rotated by its own weight, the first connecting arm 9, the second connecting arm 10, the third connecting arm 11, etc. It is a part that performs a free rotational movement that rotates in response to other movements.

The holder 3 has a base cylinder part 12 which is partially rotatable and is not rotated, a rotating part 13 rotatably supported by the base cylinder part 12, and a connecting cylinder part 14 attached to the base cylinder part 12. (See Figure 3).

A shaft support hole (not shown) is formed in the base cylindrical portion 12 and penetrates in the axial direction.

The rotating part 13 includes a shaft part 15 that is partially inserted into the shaft support hole of the base cylinder part 12, an operating part 16 coupled to one end of the shaft part 15 in the axial direction, and the other end of the shaft part 15 in the axial direction. It has a detachable part 17 coupled to. The rotating part 13 is rotatable relative to the base cylinder part 12 and the connecting cylinder part 14 in a direction around an axis S6 orthogonal to the axis S5. The rotating part 13 is rotatable by, for example, a pneumatic actuator operated by compressed air supplied from a compressor, and can also be rotated manually.

An insertion hole 15a is formed in the shaft portion 15 and extends in the axial direction. The shaft portion 15 is formed with a first arrangement recess 15b and a second arrangement recess 15c, each of which is open on the outer circumferential surface (see FIGS. 4 and 5). The first arrangement recess 15b and the second arrangement recess 15c are formed on opposite sides of the insertion hole 15a, and a portion of the second arrangement recess 15c communicates with the insertion hole 15a.

Shaft insertion holes 18 extending in a direction perpendicular to the insertion hole 15a are formed on both sides of the insertion hole 15a in the shaft portion 15, and one end of the shaft insertion hole 18 communicates with the first arrangement recess 15b and the other end communicates with the first arrangement recess 15b. It communicates with the second arrangement recess 15c. In the shaft insertion hole 18, approximately half of the side communicating with the first arrangement recess 15b is formed as a large diameter portion 18a, and approximately half of the side communicating with the second arrangement recess 15c is formed as a small diameter portion 18b. ing. An annular spring receiving surface 18c facing toward the first arrangement recess 15b is formed between the large diameter portion 18a and the small diameter portion 18b.

A locking mechanism 19 is supported on the shaft portion 15 . The lock mechanism 19 has a base member 20, a pair of spring support shafts 21, and a lock member 22.

The base member 20 has a substantially flat board portion 20a and a pressed portion 20b protruding from a portion of the board portion 20a excluding both ends. A portion of the base member 20 is inserted into the first arrangement recess 15b.

A pair of spring support shafts 21 are respectively attached to both ends of the board portion 20a. A portion of the spring support shaft 21 near one end in the axial direction is attached to the board portion 20a, and a portion other than both ends in the axial direction is inserted into the shaft insertion hole 18. A compression coil spring 23 is supported by the spring support shaft 21, and both ends of the compression coil spring 23 are pressed against the board portion 20a and the spring receiving surface 18c, respectively.

The locking member 22 is located in the second arrangement recess 15c, and the other end in the axial direction of the spring support shaft 21 is attached to both ends. The locking member 22 is urged toward the base member 20 by the urging force of a compression coil spring 23. Therefore, both ends of the locking member 22 are pressed against the shaft portion 15 and a portion of the portion between the two ends is located in the insertion hole 15a when no force is applied to the compression coil spring 23 that opposes the biasing force.

A switching button 16a is arranged on the operation section 16 (see FIG. 3). The switching button 16a has a function of switching the driving force for rotating the rotating section 13.

The detachable portion 17 has a circumferential outer circumferential surface and a coupling groove 17a that is open in the axial direction. The coupling groove 17a is formed in a rectangular shape. The coupling groove 17a communicates with the insertion hole 15a of the shaft portion 15, and the size of the opening in the coupling groove 17a is larger than the size of the opening in the insertion hole 15a.

The connecting cylinder part 14 is formed in a substantially cylindrical shape and is attached to the base cylinder part 12 in a state that covers the shaft part 15 and the detachable part 17. The connecting cylinder portion 14 is supported (connected) to the second connecting portion 11b of the third connecting arm 11.

A lock release button 14a is arranged on the connecting cylinder portion 14. An upper end portion of a spring member (not shown) is attached to the lower surface of the lock release button 14a. When the lock release button 14a is operated, the pressed portion 20b of the base member 20 is pressed by the lock release button 14a via the spring member against the biasing force of the compression coil spring 23. However, when the lock release button 14a is operated only when the lock mechanism 19 is positioned in the same phase as the lock release button 14a in the rotational direction of the shaft portion 15, the pressed portion 20b is pressed. When the pressed portion 20b is pressed, the spring support shaft 21 and the lock member 22 are moved together with the base member 20, and a part of the lock member 22 that was located in the insertion hole 15a is moved to the second arrangement recess. 15c, the entire locking member 22 is placed in the second arrangement recess 15c.

In the holder 3, when the switching button 16a is operated, the rotating part 13 is manually rotatable. On the other hand, when the switching button 16a is not operated, the rotating part 13 is made rotatable by the driving force of the pneumatic actuator.

When the operation section 16 is manually rotated by a user of the surgical support device 1, for example, a surgeon (operator) such as a doctor or an assistant, the shaft section 15 and the detachable section 17 are rotated as a unit. The part 13 is rotated relative to the base cylinder part 12 and the connecting cylinder part 14.

As mentioned above, in the surgical support device 1, each part is configured to be rotatable or rotatable about six axes from the axis S1 to the axis S6, so the orientation and position of the surgical tool held in the holder 3 It has a high degree of freedom (posture) and can perform surgery quickly and with high precision. Particularly, since free rotational or rotational movement is performed on the axes S4 and S5 and the axes S4 and S5 are perpendicular to each other, when the direction or position of the surgical instrument inserted into the port 202 is changed or when the patient 200 When the direction or position of the port 202 is changed due to breathing conditions or the like, the load on tissues near the body surface of the patient 200 can be reduced.

In the surgical support device 1, rotation of the arm body 5 on the axis S1 at the farthest position from the surgical tool is performed by the driving force of the electric motor, and the axis S2 and the axis S3 at a position closer to the surgical tool than the axis S1 are rotated. The rotation or rotation about the axis S6 is performed by the driving force of the pneumatic actuator.

Therefore, the arm body 5 is operated at a position close to the surgical instrument by the driving force of the pneumatic actuator, which has a smaller load on the patient 200 than the driving force of the electric motor, further reducing the load on the tissues near the body surface of the patient 200. be able to.

Furthermore, since the arm body 5 is rotated or pivoted at more locations due to the driving force of the pneumatic actuator than the locations where the arm body 5 is rotated due to the driving force of the electric motor, the tissue near the body surface of the patient 200 is It is possible to reduce the load.

In addition, in the surgical support device 1, an ultrasonic motor such as a piezoelectric motor capable of highly accurate positioning may be used instead of the electric motor or the pneumatic actuator. By using the ultrasonic motor, it is possible to save power and downsize the surgical support device 1.

<Drape composition, etc.>
Next, the structure of the drape 24 that covers the device main body 2 and the holder 3 will be explained (see FIG. 6).

At the time of surgery, the device main body 2 and the holder 3 are covered with a sterilized drape 24 in a sterilized state.

The drape 24 has a film-like cover 25, a hood 26 attached to the cover 25, and a plurality of wrapping tapes 27, some of which are bonded to the cover 25 by adhesive or the like.

The cover 25 is made of a transparent resin material. The hood 26 includes a mounting base 26a mounted on one end (tip end) of the holder 3 in the longitudinal direction, and a closing sheet 26b held on the mounting base 26a. One end of the wrapping tape 27 is joined to the cover 25.

The drape 24 is placed over the device body 2 and the holder 3. Therefore, the device main body 2 and the holder 3 are placed inside the cover 25 and covered by the drape 24. In a state where the device main body 2 and the holder 3 are covered with the drape 24, a hood 26 is attached to the tip of the connecting cylinder portion 14 of the holder 3.

With the device main body 2 and the holder 3 covered by the drape 24, a plurality of wrapping tapes 27 are wound around the outer surface of the cover 25 at respective positions and tightened with fixing fittings (not shown) or the like. Therefore, the wrapping tape 27 prevents the cover 25 from being rolled up, and the drape 24 maintains the device body 2 and the holder 3 in a covered state.

In addition, in the state where the fixed base 4 of the apparatus main body 2 is fixed to the fixing rail 100a of the operating table 100 by the clamper 8, for example, the clamper 8 is included in the state where the fixed base 4 is fixed to the fixing rail 100a. The entire fixed base 4 is covered with a drape 24. However, the portion of the fixed base 4 other than the clamper 8 may be covered by the drape 24.

<Separator configuration, etc.>
Next, the structure of the separator 28 attached to the holder 3 will be explained (see FIGS. 5, 7, 8, and 9). Incidentally, the separator 28 is rotated along with the later-described adapter attached to the separator 28 as the rotating part 13 in the holder 3 rotates, but in the following explanation of the separator 28 and the adapter, the direction in which the separator 28 is attached to the holder 3 is indicates the front, back, top, bottom, left, and right directions.

The separator 28 can be attached to and detached from the holder 3 in the front-rear direction (see FIGS. 5 and 9). The separator 28 is formed of a resin material, and includes a first locking part 29 having a circular outer shape, an insertion part 30 projecting rearward from the first locking part 29 , and a penetrating part 30 projecting forward from the first locking part 29 . (See FIGS. 7 and 8).

The first locking portion 29 is formed to have an outer diameter that is approximately the same size as the outer diameter of the connecting cylinder portion 14 in the holder 3 . The first locking portion 29 includes a disk-shaped closing plate portion 32 and a pair of groove-forming protrusions 33 that respectively protrude forward from the closing plate portion 32 . For example, a horizontally elongated locking hole 32a is formed in a portion of the closing plate portion 32 near the upper end. The pair of groove-forming protrusions 33 protrude from the closing plate part 32 on both sides in the longitudinal direction of the locking hole 32a, and are formed in shapes that approach each other as they go downward.

The insertion part 30 includes a coupling part 34 that is continuous with the first lock part 29 and formed in a rectangular block shape, and a shaft-shaped insertion protrusion 35 that projects rearward from the coupling part 34. The rear end portion of the insertion protrusion 35 is provided as a breaking protrusion 35a formed in a tapered shape. A concave locked portion 35b that is open downward is formed in the insertion protrusion 35 at an intermediate portion in the front-rear direction.

The second lock portion 31 projects forward from a portion of the groove forming protrusion 33 excluding the upper end thereof. The pair of second locking portions 31 have inner end portions in the left-right direction located inside the pair of groove-forming protrusions 33 . The second lock portion 31 is formed with a protrusion insertion groove 31a that is open forward and upward. The second lock portion 31 is provided with an insertion protrusion 31b located in the protrusion insertion groove 31a. The insertion protrusion 31b is continuously provided on one of the left and right wall surfaces forming the protrusion insertion groove 31a. The pair of second locking portions 31 are formed as facing surfaces 31c which are inclined so that the opposing surfaces approach each other as they go downward. The space between the pair of facing faces 31c is formed as an insertable/removable space 31d, and is shaped like an isosceles trapezoid with a lower side shorter than an upper side.

An engagement groove portion 36 is formed in the separator 28 and surrounded by the closing plate portion 32, the groove forming protrusion 33, and the rear end portion of the second lock portion 31. A pair of engagement grooves 36 are formed on the left and right, and are inclined toward each other as they go downward, and the angle of inclination is the same as the angle of inclination of the facing surface 31c.

The separator 28 configured as described above is attached to the holder 3 via the hood 26 in a state where the device main body 2 and the holder 3 are covered with the drape 24 (see FIG. 9). When the separator 28 is attached to the holder 3 via the hood 26, the breaking projection 35a of the insertion portion 30 breaks through the closing sheet 26b of the hood 26, and the insertion portion 30 is passed through the hood 26.

In the insertion portion 30 that has passed through the hood 26, the coupling portion 34 is inserted into the coupling groove 17a of the detachable portion 17 in the holder 3, and the insertion protrusion 35 is inserted into the insertion hole 15a of the shaft portion 15 in the holder 3.

When the insertion protrusion 35 is inserted into the insertion hole 15a, the lower surface of the insertion protrusion 35 slides on the upper surface of the lock member 22 in the locking mechanism 19, and the lock member 22, together with the base member 20 and the spring support shaft 21, engages the compression coil spring 23. is moved downward against the urging force of When the insertion protrusion 35 is inserted all the way into the insertion hole 15a and the locked portion 35b is positioned directly above the locking member 22, the locking member 22, together with the base member 20 and the spring support shaft 21, is attached to the compression coil spring 23. The locking member 22 is moved upward by the force and inserted into the locked portion 35b (see FIGS. 5 and 9). Therefore, the separator 28 is attached to the holder 3 and locked to the holder 3 by the locking mechanism 19.

When the separator 28 is locked to the holder 3, the first lock portion 29 is pressed against the hood 26 from the front, and the space inside the drape 24 is closed off from the front by the separator 28.

In this way, the separator 28 is locked to the holder 3 by the locking mechanism 19 when it is attached to the holder 3, so that unintended displacement of the separator 28 with respect to the holder 3 is regulated, and the space inside the drape 24 is limited by the separator 28. 28, it is possible to reliably maintain the closed state.

When the separator 28 is locked to the holder 3 as described above, when the lock release button 14a of the holder 3 is operated, the lock member 22 is moved downward and pulled out from the locked portion 35b, and the separator 28 is locked. is canceled. It is therefore possible to remove the separator 28 from the holder 3.

<Adapter configuration, etc.>
Next, the configuration of the adapter 37 attached to the separator 28 will be explained (see FIGS. 10 to 16).

The adapter 37 is removably attached to the separator 28, and is configured by connecting a first member 38 and a second member 39 in the vertical direction (see FIGS. 10 and 11).

The first member 38 is formed of a resin material, and includes a first case part 40 that is opened forward and downward, a connecting protrusion 41 that projects rearward from the first case part 40, and a rear surface of the connecting protrusion 41. It has a continuous first locking engagement part 42 (see FIGS. 10, 12, and 13).

The first case portion 40 has a top surface portion 43 facing in the vertical direction, a pair of side surfaces 44 facing in the left-right direction, and a rear surface portion 45 facing in the front-rear direction. An operation unit arrangement hole 43a is formed in the top surface portion 43. Two insertion notches 45a are formed in the rear surface portion 45, spaced apart from each other in the left and right directions, and the insertion notches 45a are opened downward and penetrated in the front and back directions. A portion of the rear surface portion 45 between the two insertion notches 45a is provided as a closing portion 45b.

A corner portion where the side surface portion 44 and the rear surface portion 45 are continuous is formed in a shape that projects downward, and this portion is provided as a regulating protrusion 46.

A coupling protrusion 47 projects downward from the pair of side surfaces 44, respectively. The coupling protrusion 47 is formed into a substantially plate shape facing in the left-right direction, and is provided with an engaging claw 47a projecting outward in the left-right direction at its lower end.

A first receiving portion 48 protrudes from the inner surface of the first member 38 at a position extending from the front end of the top surface portion 43 to the front ends of the pair of side surfaces 44 . The end surface of the first receiving portion 48 in the protruding direction is configured by, for example, a flat surface 48a and a plurality of curved surfaces 48b.

The first member 38 is provided with two first presser protrusions 49 that protrude downward from the inner surface of the top surface portion 43 and are spaced apart laterally. Note that at least the tip of the first pressing protrusion 49 may be formed of a material having flexibility or large elasticity.

The first locking engagement part 42 is formed into a substantially plate shape facing in the front-rear direction, and a lower end 42 a is located below the connecting protrusion 41 . The lower end of the first locking engagement portion 42 is substantially aligned with the lower end of the rear surface portion 45 in the vertical direction. The first locking engagement portion 42 is formed into a substantially fan-like shape, with the left and right width becoming smaller as it goes downward. The left and right edges of the first locking engagement portion 42 are provided as engagement protrusions 42b.

A pair of slits 42c that are open upward are formed in the first locking engagement portion 42 at approximately half of the upper side thereof, and are spaced apart from each other in the left and right, and the portion between the slits 42c serves as a plate-shaped locked piece 50. It is provided. The locked piece 50 is elastically deformable in the front-back direction with respect to its lower end, and has a locking protrusion 50a that projects rearward at an intermediate portion in the vertical direction. The upper end portion of the locked piece 50 is located above the other portions of the first locking engagement portion 42 . A space 50b is formed between the locked piece 50 and the rear surface of the connecting protrusion 41, which allows the locked piece 50 to deform forward.

The second member 39 is made of a resin material, includes a second case portion 51 that is open in the front-rear direction and upward, and a pair of second case portions 51 that are provided as projecting portions that project rearward from the second case portion 51. It has a locking engagement part 52 (see FIGS. 10, 14, and 15).

The second case part 51 includes a bottom part 53 formed in a flat plate shape with a part facing in the vertical direction, a pair of lateral parts 54 facing in the left-right direction, and a rear end of the lateral parts 54 extending toward each other. It has a pair of projecting surface portions 55.

The bottom surface portion 53 is provided as a flat plate portion 56 with a front end facing in the vertical direction, and a portion other than the flat plate portion 56 is provided as a concave portion 57 opened upward. The concave portion 57 has a bottom portion 57a provided as a central portion in the front, rear, left, and right directions, and a continuous portion around the bottom portion 57a is provided as an inclined portion 57b. The bottom portion 57a is formed into a flat plate shape facing in the vertical direction, and is located at the lowest position in the concave portion 57. The inclined portion 57b is inclined so as to be displaced upward as it becomes farther away from the bottom portion 57a.

A coupling recess 58 is formed in the side surface portion 54 . The coupling recess 58 includes an inserted portion 58a that is open inward in the upper and left-right directions, and an engagement hole 58b that communicates with the lower end of the inserted portion 58a. The engagement hole 58b extends back and forth and is penetrated left and right.

A second receiving portion 59 protrudes from the inner surface of the second member 39 at a position extending from the flat plate portion 56 of the bottom portion 53 to the lower end portions of the front end portions of the pair of lateral portions 54 . The end surface of the second receiving portion 59 in the protruding direction has, for example, a plurality of flat surfaces 59a arranged in the left-right direction.

The second member 39 is provided with two second presser protrusions 60 that protrude upward from the inner surface of the bottom surface portion 53 and are spaced apart laterally. Note that at least the tip of the second pressing protrusion 60 may be formed of a material having flexibility or large elasticity.

The second locking engagement portions 52 each protrude rearward from a position near the upper end of the pair of projecting surface portions 55 . An insertion groove 52a is formed near the tip of the second locking engagement portion 52. The insertion groove 52a is opened outward in the vertical and horizontal directions.

An opening 61 is formed in the second member 39 and extends from a portion between the pair of projecting surfaces 55 to the inclined portion 57b of the recessed portion 57. The opening 61 has a first portion 61a between the protruding surfaces 55 and a second portion 61b formed on the slope 57b.

The first member 38 and the second member 39 configured as described above are coupled vertically by inserting the pair of coupling protrusions 47 into the pair of coupling recesses 58 (FIGS. 11 and 11). (See Figure 16). When the coupling protrusion 47 is inserted into the coupling recess 58, the engagement claw 47a slides on the surface forming the inserted portion 58a, the coupling protrusion 47 is elastically deformed, and the engagement claw 47a is engaged. When the coupling protrusion 47 reaches the mating hole 58b, the coupling protrusion 47 is elastically returned, so that the engagement pawl 47a is inserted into and engaged with the engagement hole 58b. The first member 38 and the second member 39 are coupled by inserting and engaging the engagement claw 47a into the engagement hole 58b.

Note that the first member 38 may be formed with a pair of coupling recesses, and the second member 39 may be provided with a pair of coupling protrusions.

When the first member 38 and the second member 39 are combined, the first portion 61a of the opening 61 is closed by the closing portion 45b of the rear surface portion 45. At this time, the proximal ends of the pair of second locking engaging parts 52 of the second member 39 are inserted into the insertion notches 45a of the first member 38, and the parts other than the proximal ends are inserted into the rear surface part 45. located at the rear.

Further, in the state where the first member 38 and the second member 39 are combined, the pair of regulating protrusions 46 are respectively located outside the second locking engagement part 52 in the left-right direction, and the regulating protrusions 46 is brought into contact with or close to the second locking engagement portion 52.

In this way, the second member 39 is provided with a pair of second locking engaging portions 52 as protrusions that are spaced apart in the direction in which the pair of coupling recesses 58 are arranged, and the first member 38 is provided with a pair of second locking engaging portions 52 that are spaced apart in the direction in which the pair of coupling recesses 58 are lined up. A pair of regulating protrusions 46 are provided which are brought into contact with or close to the second locking engagement part 52 from the outside, respectively.

Therefore, since the displacement of the pair of lateral surfaces 54 in which the coupling recesses 58 are formed in the direction away from each other is regulated by the regulating protrusion 46, the engagement of the engagement claw 47a with the engagement hole 58b is prevented. A stable bonding state between the first member 38 and the second member 39 can be ensured without being released.

On the other hand, by applying force to the pair of side surfaces 44 of the first member 38 from the outer surface side and elastically deforming the side surfaces 44 in a direction toward each other, the engagement of the engagement claw 47a with the engagement hole 58b is released. Is possible. By separating the first member 38 and the second member 39 in the vertical direction with the engagement claw 47a disengaged from the engagement hole 58b, the first member 38 and the second member 39 connections can be released.

<Configuration of surgical tools>
Next, an example of the configuration of the surgical tool 80 attached to the adapter 37 will be described (see FIG. 17).

The surgical tool 80 is provided, for example, as a scope unit having an endoscope, and includes an insertion section 81 in which a plurality of lenses (not shown) are arranged, a head section 82 coupled to one end of the insertion section 81, and the insertion section 81. The light guide 83 is coupled to a portion near one end of the light guide 83.

A cable 84 that is a signal line or a power supply line (not shown) is connected to the head portion 82, and a light connection line (not shown) for guiding light is connected to the light guide 83.

The head portion 82 has an external size larger than the diameter of the insertion portion 81, and the portion excluding the front end portion is provided as a surgical instrument body 85. An image sensor (not shown) is arranged inside the surgical instrument main body 85. The surgical instrument main body 85 has an attached part 85a that is attached to the adapter 37, and a cable connection part 85b that protrudes from the rear end of the lower surface of the attached part 85a. The cable connecting portion 85b projects obliquely downward from the attached portion 85a, and the cable 84 is connected to the cable connecting portion 85b.

In the head section 82, an operating section 86 is arranged on the upper surface side of the surgical instrument main body 85. By operating the operation unit 86, a surgeon or the like can, for example, start imaging, end imaging, change or adjust imaging conditions, adjust illumination intensity, etc.

A focus ring 87 is provided in the head portion 82 on the front side of the surgical instrument main body 85. By rotating the focus ring 87 by a surgeon or the like, the focus of the video or image can be adjusted. A fixing ring 88 is provided in the head portion 82 in front of a focus ring 87. By rotating the fixing ring 88 in one direction while one end of the insertion portion 81 is inserted into the head portion 82, the insertion portion 81 can be fixed in a connected state to the head portion 82. Conversely, the insertion portion 81 can be removed from the head portion 82 by rotating the fixing ring 88 in the opposite direction.

At least the distal end of the insertion section 81 of the surgical tool 80 is inserted into the body cavity 201 through a port 202 formed in the patient 200. When the insertion section 81 is inserted into the body cavity 201, illumination light is emitted from the distal end of the insertion section 81, and the state inside the body cavity 201 is imaged by the imaging device.

In addition, although the example in which the surgical tool 80 is a scope unit having an endoscope is shown above, other surgical tools other than the surgical tool 80, such as forceps or scissors, may be attached to the adapter 37.

<Attachment of surgical tool to adapter>
Next, the attachment of the surgical tool 80 to the adapter 37 will be explained (see FIGS. 17 to 19).

The surgical tool 80 is sandwiched by the first member 38 and the second member 39 with the attached part 85a of the surgical tool main body 85 and the part excluding the tip of the cable connecting part 85b covered from above and below. It is attached to the adapter 37 (see FIGS. 18 and 19).

When the surgical instrument main body 85 is attached to the adapter 37, the flat surface 48a of the first receiving section 48 of the first member 38 and the second The three flat surfaces 59a of the receiving portion 59 are brought into point or line contact. Also, at this time, the pair of first presser protrusions 49 of the second member 39 and the pair of second presser protrusions 60 of the second member 39 make point contact with a portion near the rear end of the surgical instrument main body 85. or in line contact.

Therefore, the surgical instrument main body 85 is attached to the adapter 37 while being pressed from the periphery by the first member 38 and the second member 39 at four places on the front side and four places on the rear side, and is attached to the adapter 37 in a stable state. It will be installed.

In particular, the first member 38 is provided with a plurality of first presser protrusions 49 that press down on the surgical tool main body 85, and the second member 39 is provided with a plurality of second presser protrusions 60 that press on the surgical tool main body 85. Therefore, the surgical tool main body 85 is attached to the adapter 37 while being pressed by the plurality of first holding protrusions 49 and the plurality of second holding protrusions 60, and the surgical tool 80 is stably attached to the adapter 37. It can be installed in the same state.

Furthermore, cushions may be attached to the tips of the first presser protrusion 49 and the second presser protrusion 60, respectively, and by attaching the cushions, the surgical instrument main body 85 is pressed by the plurality of cushions. Since the surgical instrument 80 is attached to the adapter 37 in a stable state, the surgical instrument 80 can be attached to the adapter 37 in a stable state regardless of the processing tolerances of the adapter 37 and the surgical instrument 80. Note that various materials such as cloth, rubber, sponge, etc. can be used as the cushion.

When the surgical instrument main body 85 is attached to the adapter 37, the tip of the cable connection portion 85b protrudes from the second portion 61b of the opening 61 (see FIG. 19).

Further, when the surgical instrument main body 85 is attached to the adapter 37, the operating section 86 is located in the operating section placement hole 43a of the first member 38, and the operating section 86 can be operated. At this time, since the surgical tool main body 85 is attached to the adapter 37, the focus ring 87 and the fixing ring 88, which are located on the front side of the surgical tool main body 85, are located outside the adapter 37. Therefore, the operator or the like can operate the focus ring 87 and the fixing ring 88 while the surgical tool main body 85 is attached to the adapter 37.

On the other hand, the surgical instrument main body 85 can be removed from the adapter 37 by disengaging the engagement claw 47a from the engagement hole 58b and vertically separating the first member 38 and the second member 39. I can do it.

<Attachment and detachment of adapter to separator>
Next, the attachment and detachment of the adapter 37 to and from the separator 28 will be explained (see FIGS. 19 to 24).

The adapter 37 is attached to and detached from the separator 28 in a direction perpendicular to the direction in which the separator 28 is attached to and detached from the holder 3 (see FIG. 20). Specifically, as described above, the separator 28 is attached to and removed from the holder 3 in the front-back direction, whereas the adapter 37 is attached to and removed from the separator 28 in the up-down direction. Further, the adapter 37 is locked by attaching the first member 38 and the second member 39 to the separator 28 separately as described below.

Note that the adapter 37 can be attached to the separator 28 with the surgical tool 80 attached to the adapter 37. However, the second member 39 is first attached to the separator 28 and locked, and then the surgical instrument main body 85 of the surgical instrument 80 is attached to the second member 39 and the first member 38 is attached to the second member 39. It may be coupled to the separator 28 and locked by being attached to the separator 28.

The second member 39 is moved downward with respect to the separator 28, and the pair of second locking engaging portions 52 are respectively inserted into the pair of protrusion insertion grooves 31a of the separator 28 from above (see FIG. 21). . At this time, the insertion protrusion 31b of the second locking part 31 is inserted into the insertion groove 52a of the second locking engagement part 52, and the second member 39 is locked to the separator 28. In the state where the second member 39 is locked to the separator 28, the second locking engagement portion 52 is inserted into the protrusion insertion groove 31a, thereby restricting displacement in the left and right direction, and the second member 39 is inserted into the insertion groove 52a. By inserting the protrusion 31b, movement in the front-rear direction is restricted.

Note that the second locking engagement part 52 may be formed with a protrusion insertion groove and the insertion protrusion, and the second locking part 31 may be formed with an insertion groove.

The first member 38 is moved downward with respect to the separator 28 in the same way as the second member 39, and the pair of engagement protrusions 42b of the first locking engagement part 42 are respectively engaged with the pair of engagement protrusions 42b of the separator 28. It is inserted into the groove 36 from above. At this time, the locking protrusion 50a of the locked piece 50 is slid onto the front surface of the closing plate part 32 of the separator 28, and the locked piece 50 is elastically deformed toward the space 50b. When the locking protrusion 50a reaches the locking hole 32a of the closing plate part 32 due to the downward movement of the first member 38 with respect to the second member 39, the locking protrusion 50a is inserted into the locking hole 32a. As a result, the first member 38 is locked to the separator 28 (see FIGS. 19, 22, and 23).

Note that a locking hole may be formed in the locked piece 50 and a locking protrusion may be provided in the first locking portion 29.

In a state where the first member 38 is locked to the separator 28, displacement in the vertical, longitudinal, and horizontal directions is restricted. At this time, the first member 38 and the second member 39 are coupled, and displacement of the second member 39 in the vertical direction with respect to the separator 28 is also restricted.

When the adapter 37 is attached to the separator 28 and locked, the end 42a of the first locking engagement portion 42 projects downward from the engagement groove 36.

In the adapter 37, the first locking engagement part 42 is inserted from the front side into the removable space 31d formed between the pair of second locking parts 31, and the second locking engagement part 52 is inserted into the removable space 31d formed between the pair of second locking parts 31. It may be moved downward relative to the separator 28 while being positioned directly above the second locking portion 31 . By doing this, the second locking engagement part 52 is inserted into the protrusion insertion groove 31a from above, and the engagement protrusion 42b is inserted into the engagement groove 36 from above, so that the locking protrusion 50a is inserted into the engagement groove 36 from above. The adapter 37 is inserted into the locking hole 32a and locked, and the adapter 37 is locked to the separator 28.

When the adapter 37 is locked to the separator 28, the surgical tool 80 attached to the adapter 37 is held by the holder 3 via the adapter 37 and the separator 28. In this way, the separator 28 and the adapter 37 are used for the surgical support device 1 having the holder 3, and the surgical tool 80 having the head part 82 to which the insertion part 81 is connected is attached and the holder 3 holds the surgical tool 80. It is provided as a holding attachment 70.

On the other hand, when the locked piece 50 of the adapter 37 is pressed from behind and is elastically deformed toward the space 50b, the locking protrusion 50a is pulled out from the locking hole 32a, and the separator 28 is unlocked. When the locked piece 50 is pressed and the adapter 37 is unlocked from the separator 28, the adapter 37 is moved upward relative to the separator 28, and the second locking engagement part 52 is removed from the protrusion insertion groove 31a. When the adapter 37 is pulled out and the engagement protrusion 42b is pulled out from the engagement groove 36, the adapter 37 is removed from the separator 28.

At this time, as described above, when the adapter 37 is attached to the separator 28, the end 42a of the first locking engagement part 42 protrudes downward from the engagement groove 36, so the end It is possible to press 42a from below. Therefore, for example, even when the rear surface of the first locking engaging portion 42 is in close contact with the front surface of the first locking portion 29 of the separator 28 and the frictional force between the two is high, the end portion 42a is By pressing the adapter 37 from the separator 28, the close contact between the first locking engagement part 42 and the first locking part 29 is released, and the adapter 37 can be easily and reliably removed from the separator 28.

The first locking engagement portion 42 has a pair of engagement protrusions 42b, and is formed in a shape such that the distance between the engagement protrusions 42b becomes smaller as it goes in the direction in which the adapter 37 is attached to the separator 28. A pair of engagement grooves 36 are formed in the lock portion 29 of 1, and the distance becomes smaller as the adapter 37 is attached to the separator 28, and the pair of engagement protrusions 42b are respectively inserted into the pair of engagement grooves 36. This locks the first member 38 of the adapter 37 to the separator 28.

Therefore, the adapter 37 is not removed from the separator 28 until the outer edge of the engaging protrusion 42b of the first locking engaging part 42 is located behind the insertable/removable space 31d. This can be done by moving the lever upward (see FIG. 24). With the adapter 37 moved upward to such a position, the first locking engagement part 42 can be pulled out from the insertable/removable space 31d to the front side, and the adapter 37 can be removed from the separator 28.

By removing the adapter 37 from the separator 28 in this manner, the amount of upward movement of the adapter 37 relative to the separator 28 is minimized, and the adapter 37 is protruded diagonally downward from the second portion 61b of the opening 61. The cable connecting portion 85b and the cable 84 connected to the cable connecting portion 85b are unlikely to come into contact with the lower surface of the separator 28 or the lower surface of the holder 3.

Therefore, the cable connecting portion 85b and the cable 84 are less likely to be damaged, and the adapter 37 can be properly removed from the separator 28.

Further, when removing the adapter 37 from the separator 28, by moving the adapter 37 a distance shorter than the length of the engagement protrusion 42b, it becomes possible to release the engagement of the engagement protrusion 42b with the engagement groove 36, The adapter 37 can be easily and quickly removed from the separator 28.

<Use of surgical support equipment, etc.>
As described above, in a state in which the separator 28 is attached to the holder 3, the adapter 37 is attached to the separator 28, and the surgical tool 80 is attached to the adapter 37, the surgical support device 1 is operated by the surgeon (doctor) in a master-slave manner, for example. ) is operated and used remotely. At this time, at least the distal end of the insertion section 81 of the surgical instrument 80 is inserted into the body cavity 201 through a port 202 formed in the patient 200, and surgical operations, imaging of the affected area, etc. are performed.

In a surgical operation in which such a surgical support device 1 is used, the surgeon or an assistant may manually operate the surgical tool 80. It is possible to operate the surgical instrument 80 by grasping the adapter 37 to which the main body 85 is attached. Therefore, the adapter 37 functions as a gripping part to be gripped by an operator or the like.

Furthermore, when the surgical instrument main body 85 is attached to the adapter 37, the operation section 86 located in the operation section arrangement hole 43a of the first member 38 can be operated from the outside of the adapter 37, and the adapter 37 can be operated from the outside of the adapter 37. It is also possible to operate the focus ring 87 located on the front side of the surgical instrument 80, thereby ensuring good usage conditions of the surgical instrument 80.

In addition, in surgery, different types, shapes, and sizes of surgical tools are used depending on the content and method of the surgery. Adapters with different shapes and sizes are selected and used depending on the situation. However, even if these adapters have different shapes and sizes, the basic structure such as the locking structure for the separator 28 and the point that the two members are joined together is the same as the adapter 37. There is.

<Summary>
As described above, the surgical support device 1 is provided with the separator 28 that is removably attached to the holder 3, and the adapter 37 that is removably attached to the separator 28 and to which the head section 82 is attached. The part 82 is provided as a grip part to be gripped by the operator in the attached state.

Therefore, in a state in which the separator 28 is attached to the holder 3, the adapter 37 is attached to the separator 28, and the head portion 82 is attached to the adapter 37, it becomes possible to grip the head portion 82 via the adapter 37, and the adapter 37 This makes it possible to use surgical instruments 80 of different shapes or sizes, and it is possible to carry out appropriate and rapid surgical procedures without causing any hindrance to the surgical procedure.

Further, the holder 3 is provided with a locking mechanism 19, and the separator 28 has a locked portion 35b that is locked to the holder 3 by the locking mechanism 19, and a first locking portion 29 and a second locking portion 31 that lock the adapter 37. The adapter 37 has a first locking engagement part 42 and a second locking engagement part 52 which are respectively locked to the separator 28 by the first locking part 29 and the second locking part 31. It is provided.

Therefore, since the separator 28 is locked to the holder 3 by the locking mechanism 19 and the adapter 37 is locked to the separator 28 by the first locking part 29 and the second locking part 31, the separator 28 is in a stable state in the holder 3. At the same time, the adapter 37 is stably attached to the separator 28, and the surgical tool 80 can be stably held in the holder 3 via the adapter 37 and the separator 28.

Further, the locking protrusion 50a is inserted into the locking hole 32a by the elastic force of the locked piece 50, so that the adapter 37 is locked to the separator 28.

Therefore, the locking protrusion 50a is inserted into the locking hole 32a by elastically returning the locked piece 50 that has been elastically deformed, and the adapter 37 is locked to the separator 28. Therefore, the locking operation of the adapter 37 to the separator 28 is performed. Also, the unlocking operation for the separator 28 of the adapter 37 can be performed easily and quickly.

Furthermore, in the holding attachment 70, the direction in which the separator 28 is attached to the holder 3 and the direction in which the adapter 37 is attached to the separator 28 are different.

Therefore, since the separator 28 and the adapter 37 are attached to the holder 3 and the separator 28, respectively, in different directions, when one of the separator 28 or the adapter 37 is removed, unintentional detachment of the other can be prevented. In particular, by attaching the separator 28 and the adapter 37 to the holder 3 and the separator 28 in orthogonal directions, the attachment direction of the adapter 37 to the separator 28 and the attachment direction of the separator 28 to the holder 3 are made clear, and both attachment It becomes difficult to recognize the wrong direction, and the work of attaching the adapter 37 to the separator 28 and the work of attaching the separator 28 to the holder 3 can be performed properly and reliably.

Further, in the holding attachment 70, the adapter 37 is configured by combining the first member 38 and the second member 39, and the first member 38 and the second member 39 are respectively locked to the separator 28. It is configured to be

Therefore, in a state where the first member 38 is removed from the separator 28 and the connection between the first member 38 and the second member 39 is released, since the second member 39 is locked to the separator 28, the separator 28 It becomes possible to hold the surgical tool 80 by the second member 39 locked to the second member 39, and prevents the surgical tool 80 from falling off when the first member 38 and the second member 39 are uncoupled. be able to.

In addition, the holder 3 is provided with a locking mechanism 19, and the separator 28 has a locked portion 35b that is locked to the holder 3 by the locking mechanism 19, a first locking portion 29 that locks the first member 38, and a second locking portion 29 that locks the first member 38. A second lock portion 31 for locking the member 39 is provided.

Therefore, since the separator 28 is locked to the holder 3 by the locking mechanism 19 and the adapter 37 is locked to the separator 28 by the first locking part 29 and the second locking part 31, the separator 28 is in a stable state in the holder 3. At the same time, the adapter 37 is stably attached to the separator 28, and the surgical tool 80 can be stably attached to the adapter 37.

200 Patient 201 Body cavity 1 Surgery support device 3 Holder 9 First connecting arm 10 Second connecting arm 11 Third connecting arm 28 Separator 29 First locking part 31 Second locking part 32a Locking hole 35b Locked part 36 Engagement groove portion 37 Adapter 38 First member 39 Second member 42 First locking engagement portion 42a End portion 42b Engagement protrusion 46 Regulating protrusion 47 Coupling protrusion 49 First pressing protrusion 50 Locked piece 50a Lock protrusion 52 Second locking engagement part (protrusion)
58 Coupling recess 60 Second holding protrusion 70 Holding attachment 80 Surgical tool 81 Insertion section 82 Head section

Claims (3)

A holding attachment used for a surgical support device having a plurality of connecting arms and a holder supported by the connecting arms, and for causing the holder to hold a surgical tool,
A separator that can be attached to and detached from the holder;
an adapter that is detachably attached to the separator and to which the surgical tool is attached;
The adapter is configured by combining a first member and a second member,
the first member and the second member are each locked to the separator ;
The first member is provided with a pair of coupling protrusions that protrude toward the second member,
A pair of coupling recesses to which the pair of coupling protrusions are coupled are formed on the inner surface of the second member,
The second member is provided with a pair of protrusions that are spaced apart in a direction in which the pair of coupling recesses are lined up,
The first member is provided with a pair of regulating protrusions that are brought into contact with or close to the pair of protrusions from the outside in the lined up direction.
Retention fitting. The holder is provided with a locking mechanism,
The separator is provided with a locked portion that is locked to the holder by the lock mechanism, a first lock portion that locks the first member, and a second lock portion that locks the second member. The holding attachment according to claim 1. The first member is provided with a plurality of first pressing protrusions for pressing the surgical tool,
The holding fitting according to claim 1 or 2, wherein the second member is provided with a plurality of second holding protrusions for holding down the surgical tool.

Images